Play Penny Toss
Newton's 2nd Laws of force and motion come into play with this game. The law is all about acceleration taking place when force is placed upon a mass. In the case of this game, the penny is the mass and the child's energy is the force. Too much force and the penny will go beyond the line. Not enough, and the penny won't get close enough. Learning about force and motion on mass is a fundamental element of physics and comes into play in LOTS of STEM careers - like building engines, servicing water power plants, sending rockets into space, and so much more.
Anywhere. However, this one is particularly good when you're waiting for a table at a restaurant.
Project Materials List
Coins - could be pennies, nickles, quarters. Doesn't matter.
Give each child a coin.
Pick a crack in the sidewalk or a particular tile.
One by one, have each child toss their coin to see who can get closest to the "line"
Whoever is closest in each round is the winner of the round.
Best of 10 rounds is the winner. Prize = bragging rights.
Ideas, Notes, & Tips
As a parent, I know I don't have to say this, but I will anyway. Give each child the SAME coin type. In other words, don't give one a penny and one a quarter unless you want excuses and fighting over why one kid won because of an unfair advantage.
Also, it's just a game. Be sure to keep it light and fun.